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Topic: Defence mechanism


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In the News (Fri 25 Jul 08)

  
  Defence mechanism - Wikipedia, the free encyclopedia
Defence mechanisms are unconscious resources used by the ego to reduce conflict between the id and superego and thereby anxiety.
The term "defence mechanism" is often thought to refer to a definitive singular term for personality traits which arise due to loss or traumatic experiences, but more accurately refers to several types of reactions which were identified during and after daughter Anna Freud's time.
Freud, A. The Ego and the Mechanisms of Defence.
en.wikipedia.org /wiki/Defence_mechanism   (1483 words)

  
 Treating Inappropriate Aggressive Responces in Puppies
The purpose of the defence mechanism is as stated to relieve the anxious state the problem with them is they don’t address the cause of the anxiety they are in fact a form of avoidance, the sufferer gains relief from the anxiety felt but only temporarily and the underlying conflict remains.
Defence mechanisms tend to be automatic and very rigid responses as such these patterns of behaviour have a tendency to distort the reality of the situation.
This defence mechanism is characterised by an individual expressing aggression or assertiveness when they concerned about their passivity and dependency.
www.dogstuff.info /inapprop_aggress_responses_puppies_macdonald.html   (9378 words)

  
 Resistance to organisational change: The role of defence mechanisms
For this research, unconscious processes were operationalised as defence mechanisms that arise involuntarily in response to the perceptions of psychic danger and are adopted by the individual to alleviate anxiety (Andrews et al., 1993).
Defence mechanisms are generally used unconsciously by an individual in response to psychic danger (Andrews et al., 1993; Oldham and Kleiner, 1990) and are claimed to influence an individual's resistance to organisational change (de Board, 1983).
The defence mechanisms scale was assessed for factorial validity by using factor analysis to analyse and confirm underlying interrelationships among the defence variables.
www.humboldt.edu /~campbell/p403rdg_orgchg3.htm   (5082 words)

  
 Anxiety Zone - Defence mechanism
Defence mechanisms (British spelling; Defense mechanisms in American English) are set procedures in animals which are used to avoid danger or alleviate physical or psychological stresses.
In psychoanalytic theory, a defence mechanism is an unconscious way to protect one's personality from unpleasant thoughts which may otherwise cause anxiety.
However, a defence mechanism can also lead to a neurosis if it causes a person to adopt ineffectual or inappropriate coping strategies.
www.anxietyzone.com /glossary/defence_mechanism.html   (497 words)

  
 psychoanalitic research:defence mechanisms against mathematics
The distinction between defence mechanism and phantasy depends, Segal claims, on "the différence between the actual process and its specific detailed mental representation".
She gives a good example of this: repression, a defence mechanism, can be actually experienced and recounted by a patient as an inner dam which could burst under the pressure of a flood.
I have tried to study some of the different defence mechanisms employed against mathematics by using a questionnaire with a group of 614 students from the public educational establishments of the Marne department.
perso.wanadoo.fr /jacques.nimier/pagea272.htm   (402 words)

  
 Gene Silencing as an Adaptive Defence Against Viruses   (Site not responding. Last check: 2007-10-09)
It now seems that it is the consequence of accidentally triggering the plant's adaptive defence mechanism against viruses and transposable elements.
Biology students are taught that the concept of vaccination came from Edward Jenner's discovery that milkmaids and dairymen infected with the mild cowpox virus were protected against smallpox.
This was probably the first observation of a plant's intrinsic defence mechanism against viruses which, 75 years later, is just beginning to be understood.
www.biotech-info.net /adaptive_defence.html   (331 words)

  
 Defence mechanism (biology) - Wikipedia, the free encyclopedia
Many animals have developed physical Defence mechanisms (British spelling; Defense mechanisms in American English), which act as evolutionary characteristics in a manner similar to psychological defences.
This is a common defense mechanism for animals in open environments, such as grasslands and prairies.
It is also common for animals that are arboreal, such as primates, which typically scan the ground around them for terrestrial predators, as well as the sky for arial predators.
en.wikipedia.org /wiki/Defence_mechanism_(biology)   (394 words)

  
 Defense Mechanisms
Sigmund Freud describes how the Ego uses a range of mechanisms to handle the conflict between the Id, the Ego and the Super ego, which is why these mechanisms are often called 'Ego defense mechanisms'.
Freud noted that a major drive for most people is the reduction in tension, and that a major cause of tension was anxiety.
Psychoanalysis often involves a long series of sessions with the client in which original causes are sought out (often searching through childhood relationships) and cathartic experiences of realization are used to teach the client how these mechanisms are no longer appropriate.
changingminds.org /explanations/behaviors/coping/defense_mechanisms.htm   (468 words)

  
 Brunet
The first defence mechanism encountered by the pathogen is the epithelial barrier.
Stimulation of adaptive immune mechanisms is the goal of vaccination programmes, but these mechanisms may also be significant in speeding recovery and clearing the infection.
If the protein is part of the host defence mechanism, then a decrease in its functional capacity may lower resistance to one or more infectious agents.
www.fao.org /livestock/agah/id/brunet_main/brunet/public_sub9_p2.html   (1050 words)

  
 syngenta cuts   (Site not responding. Last check: 2007-10-09)
Although not recognized at the time, evidence of a plant's intrinsic defence mechanism to counter viruses and transposons came from the initially mystifying results of co-suppression and transgene-mediated virus resistance.
But the most convincing evidence that the dsRNA-induced silencing mechanism is suppressing TEs is that such silenced elements are reactivated in a number of PTGS- and RNAi-defective mutants, and that some of the 21-nucleotide dsRNAs from RNAi and PTGS extracts contain sequences of TEs (ref. 40, and A. Hamilton and D. Baulcombe, personal communication).
That PTGS is a manifestation of an anti-virus defence mechanism seems beyond doubt from the discovery that viruses encode proteins to specifically disable the system81, 84-86.
www.checkbiotech.org /blocks/dsp_document.cfm?doc_id=1260   (6845 words)

  
 THE IMMUNOLOGY OF LEPROSY
In fighting disease, the body is capable of identifying any foreign organism and the defence mechanism recognises the invading germs as “Antigens” In the case of Leprosy, M.leprae is the source of the Antigens.
In actual fact, a battle takes place within the body as the defence cells fight against the bacteria to drive them away and this is called “Inflammation”, which may be likened to the body’s second-line of defence.
Where the autonomic nerves are affected, the sweat and sebaceous glands may cease to function resulting in a break-down of the sweating and oiling mechanism and a consequent drying (and cracking) of the skin resulting in secondary infection.
www.webspawner.com /users/immunity   (1755 words)

  
 SSE - Psychometric properties of the Defense Mechanism Test
Although the Defence Mechanism Test (DMT) has been in use for almost half a century in selection settings, it is still unclear what it actually measures.
Thus, rather than capturing psychodynamic defence mechanisms, the results suggest that the DMT taps perceptual difficulties in correct identification of brief stimulus exposures regardless of their emotional contents.
Ekehammar, B., and Zuber, I. In defence of the criticism of the Defence Mechanism Test (DMT): A reply to Kragh (1998).
www.hhs.se /EFI/SecP/Research/DMT.htm   (261 words)

  
 Sport | Tait's defence mechanism has Scotland driving forward
He switched to rugby league in 1988, returning to the union code in 1996 after the onset of professionalism and he toured South Africa with the Lions in 1997, when the Test series was decided by the visitors' defence, led by another returnee from league, the Wales centre Scott Gibbs.
I was the defence coach for three years before Matt Williams said he wanted to do it his own way, which was fair enough.
What Alan has done in defence is to set out from the premise that everyone could tackle and he has emphasised their strengths, rather than highlighting what they could not do."
sport.guardian.co.uk /print/0,,329429926-119324,00.html   (863 words)

  
 New Page 1
Study of immunity and its mechanisms and its clinical application is termed as Immunology.
Defence against Infections: the human body defends itself against variety of infections and toxins which try to make it sick.
Skin and mucous membranes have glands that secrete chemicals such as lysozymes which act as a part of the external defence mechanism.
www.predictivehomeopathy.com /home/immunology.htm   (2404 words)

  
 THE SKIN AS AN ORGAN OF DEFENCE
Vomiting can also be regarded as a defence mechanism by ridding the body of irritants and toxins such as alcohol, drugs and bacterial toxins in some instances although this protection is by no means fully effective.
Diarrhoea, like vomiting, may also be regarded as a defence mechanism although in most instances it occurs far too late in the course of an infection to be of much benefit.
Blinking is a defence reflex that both eliminates irritants and ensures even distribution of the tears.
www.fortunecity.com /greenfield/rattler/46/nonspec.htm   (2049 words)

  
 SeedQuest - Central information website for the global seed industry
Max Planck Gesellschaft researchers in Cologne, Germany demonstrate that a multi-step defence system underlies the durable resistance of plants to fungal parasites.
The redundancy of the defence layers and the wide-ranging effects of PEN2 explain why, in nature, nonhost resistance is a durable and broadly effective defence mechanism.
Until now, scientists had assumed that nonhost resistance is based more on "passive" mechanisms: for example, the structure of the cell wall, poisonous substances on the surface of the plant, or a lack of molecular entry sites for pathogens.
www.seedquest.com /News/releases/2005/november/14117.htm   (1546 words)

  
 DAWN - Editorial; December 15, 2003
THE defence plan which has won the EU leaders’ approval at the Brussels summit will not prove to be as big a step forward for the Union as some of its members had hoped.
It was at the American insistence that WEU could not develop into a defence mechanism and Nato — where America has a big say in decision making — was assigned the role of safeguarding the security of the Atlantic alliance.
It has now been agreed to restructure the defence mechanism — beefing up the existing defence planning unit in the EU’s council of ministers and setting up a permanent EU cell in Nato’s headquarters and a Nato liaison office in the EU.
www.dawn.com /2003/12/15/ed.htm   (1227 words)

  
 Defence Small Business Access - Defence Procurement
Defence spends in excess of five billion dollars annually on goods and services to support Australia's defence capabilities.
The Australian Industry Involvement (AII) Program is Defence's mechanism for satisfying its requirements for in-country support of the equipment that it acquires.
The aim of CSP is to ensure that defence support services are provided in a manner which achieves the best value for money through a market testing process which is transparent, auditable and defendable.
www.defence.gov.au /dsba/Defence_Procurement.htm   (857 words)

  
 BBC News | The Economy | GEC in BAe-Dasa defence mechanism
The heads of BAe and GEC - Sir Richard Evans and Lord Simpson - are believed to have discussed a deal where Marconi Electronics would be added to the new company in a second phase of the merger process.
Europe's defence sector is trying to consolidate in the face of stiff competition from the top three US players, Boeing, Lockheed Martin and Raytheon.
A spokesman for GEC said that the company was in discussions with all the main parties in the defence industry and hoped to reach a conclusion soon.
news.bbc.co.uk /1/low/business/the_company_file/234288.stm   (364 words)

  
 Snapshot of AIDS defence mechanism | | The Australian
Having an image of the enzyme, called A3G, could help researchers design a drug to mimic its effects and perhaps provide the first medicine to boost the ability to fight AIDS, the team at the University of Rochester Medical Centre in New York said.
Knowing what the structure looks like can help in a process known as rational drug design, in which scientists build a new drug molecule by molecule, to precisely match a target like a key fitting into a lock.
"Here is a host defence factor which the virus tries to eliminate and if we had some way of shielding it, we could help white blood cells defend themselves," Prof Smith said.
www.theaustralian.news.com.au /story/0,20867,20693190-1702,00.html   (416 words)

  
 Strong host resistance targeted against a viral suppressor of the plant gene silencing defence mechanism   (Site not responding. Last check: 2007-10-09)
The 2b protein encoded by cucumber mosaic cucumovirus (Cmv2b) acts as an important virulence determinant by suppressing post-transcriptional gene silencing (PTGS), a natural plant defence mechanism against viruses.
Thus, a viral suppressor of the host gene silencing defence mechanism is the target of another independent host resistance mechanism.
Our results provide new insights into the complex molecular strategies employed by viruses and their hosts for defence, counter-defence and counter counter-defence.
www.biotech-info.net /host_resistance.html   (260 words)

  
 Researchers discover a natural defence mechanism for Alzheimer's Disease
QUÉBEC (February 16, 2006) - A team from the Faculty of Medicine at Université Laval and the research centre at CHUQ (Centre hospitalier universitaire de Québec) has discovered a natural defence mechanism that the body deploys to combat nerve cell degeneration observed in persons with Alzheimer's disease (AD).
According to Dr. Rivest, anti-inflammatory drugs should not be administered in cases of Alzheimer's disease, as they interfere with this natural defence mechanism.
On the contrary, he adds, a way must be found to stimulate the recruitment of a greater number of bone marrow-derived microglia.
news.gc.ca /cfmx/view/en/index.jsp?articleid=197479   (585 words)

  
 Bombardier Beetle's chemical weapon
The defense mechanism includes: the hydraquinone and hydrogen peroxide reactants, the oxidative enzymes, the two reservoirs which contain the mixture of chemicals, the thin walls of these reservoirs which permit muscular control, the thick-walled reaction chamber (providing robustness), and the valve which seals the reservoirs from the reaction chamber.
This problem does not arise for the beetle: the pulsed mechanism produces an effective deterrent with (a) minimum muscular force, (b) good control of direction and duration, and (c) a high discharge velocity.
In this case, the research team conclude that in the context of its end use, the defence mechanism of the beetle cannot be improved: `For this purpose, the pulsed mechanism is ideal'.
www.nwnet.co.uk /pages/uk/org/bcs/Bcs049.htm   (714 words)

  
 BBC News | The Company File | Defence mechanism
A wave of massive mergers has swept through the western world's defence and aerospace industry in recent years.
Followers of the companies believe a deal could be agreed within six months, creating a combat aircraft, defence electronics and services company that would rank third in the world.
The quickening pace of negotiations has pushed other defence firms like GEC to also take the plunge and join in.
news.bbc.co.uk /1/low/business/the_company_file/227828.stm   (684 words)

  
 India News : PM favoured new mechanism for defence deals   (Site not responding. Last check: 2007-10-09)
New Delhi:Adding a new twist to the controversy over defence contracts, Prime Minister Manmohan Singh has favoured a new mechanism for registration of defence agents.
Refusing to comment on the controversy involving former Defence Minister George Fernandes in the Barak deal, Singh acknowledged that the system needs an overhaul.
The Prime Minister admitted that defence deals were not possible without middlemen and wanted the Defence Ministry to explore the possibility of recognising the defence agents.
www.keralanext.com /news/?id=877463   (120 words)

  
 RNA interference is an antiviral defence mechanism in Caenorhabditis elegans : Nature   (Site not responding. Last check: 2007-10-09)
RNA interference is an antiviral defence mechanism in Caenorhabditis elegans
RNAi has been postulated to function as an adaptive antiviral immune mechanism in the worm, but there is no experimental evidence for this.
Because the RNAi response occurs in the absence of exogenously added VSV small interfering RNAs, these results show that RNAi is activated during VSV infection and that RNAi is a genuine antiviral immune defence mechanism in the worm.
www.nature.com /nature/journal/v436/n7053/abs/nature03957.html   (352 words)

  
 Defence Mechanisms of the Ego: Supplementary Notes (via CobWeb/3.1 planetlab2.cs.umd.edu)   (Site not responding. Last check: 2007-10-09)
Some of the major defence mechanisms are as follows.
Defence mechanisms are important for personality for a number of reasons.
They are part of the ego, and their use is involved in formation of the superego.
web.ukonline.co.uk.cob-web.org:8888 /tom.buchanan/defencemechs.htm   (566 words)

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